To allow libusb or WinUSB to access an USB Bluetooth dongle, you need to install a special device driver to make it accessible to user space processes.

It works like this:

Download Zadig
Start Zadig
Select Options -> “List all devices”
Select USB Bluetooth dongle in the big pull down list
Select WinUSB (libusb) in the right pull pull down list
Select “Replace Driver”

Toolchain

The port requires a Unix-like toolchain. We successfully used mingw-w64 to compile and run the examples. mingw64-w64 is based on MingW which has a good summary 'MinGW provides a complete Open Source programming tool set which is suitable for the development of native MS-Windows applications, and which do not depend on any 3rd-party C-Runtime DLLs.'

We've used the Msys2 package available from their downloads page on Windows 10, 64-bit and use the MSYS2 MinGW 32-bit start menu item to compile 32-bit binaries that run on both 32/64-bit systems.

IN the MSYS2 shell, you can install git, winpty, and python with pacman:

$ pacman -S git
$ pacman -S winpty
$ pacman -S python

Compilation

With mingw64 installed, just go to the port/windows-winusb directory and run make

$ cd btstack/port/windows-winusb
$ make

Console Output

When running the examples in the MSYS2 shell, the console input (via btstack_stdin_support) doesn't work. It works in the older MSYS and also the regular CMD.exe environment. Another option is to install WinPTY and then start the example via WinPTY like this:

$ winpty ./spp_and_le_counter.exe